:root{--bg:#F6F0DC;--deep:#E6DCC0;--paper:#FBF7EA;--sub:#EFE6CE;--ink:#18140A;--text:#2A2414;--muted:#5A4E30;--soft:#7A6E48;--gold:#6E5418;--honey:#C9A03A;--border:rgba(24,20,10,.12);--strong:rgba(110,84,24,.50);--shadow:0 12px 28px rgba(24,20,10,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}img{display:block;max-width:100%;object-fit:contain;object-position:center}.wrap{width:min(960px,calc(100% - 32px));margin:auto}
.fixed-head{position:fixed;inset:0 0 auto;z-index:80}.micro{height:20px;background:var(--ink);color:var(--honey);font-size:12px}.micro-in{height:20px;display:flex;align-items:center;justify-content:space-between}.micro button{border:0;background:transparent;color:var(--honey);height:20px}.brandbar{height:54px;background:var(--paper);border-bottom:1px solid var(--strong)}.brand-in{height:54px;display:flex;align-items:center;justify-content:space-between}.logo-link{min-height:44px;display:flex;align-items:center;max-width:50%}.logo{height:24px}.brand-actions{display:flex;gap:8px}.app-btn,.bag-btn{min-height:44px;padding:0 14px;border-radius:18px;display:inline-flex;align-items:center;justify-content:center;font-size:14px}.app-btn{background:linear-gradient(135deg,#18140A 0%,#C9A03A 100%);color:var(--paper)}.bag-btn{background:var(--paper);border:1px solid var(--strong)}
.leaf-nav{height:46px;background:var(--paper);border-bottom:1px solid var(--border)}.leaf-in{height:46px;display:flex;justify-content:center;align-items:center;gap:56px}.leaf-link{min-height:44px;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}.leaf-link i{width:22px;height:14px;border:1px solid var(--gold);border-radius:10px 8px 10px 2px}.leaf-link.is-current{font-weight:800;color:var(--ink)}.leaf-link.is-current i{background:var(--honey);border-color:var(--honey)}
.site-main{padding-top:120px;padding-bottom:42px}.hero,.page-head{padding:38px 0 22px}.hero h1,.page-head h1{font-size:24px;line-height:1.3;margin:0 0 12px;color:var(--ink)}h2{font-size:20px;line-height:1.4;margin:0 0 12px;color:var(--ink)}h3{font-size:16px;line-height:1.45;margin:0 0 8px;color:var(--ink)}p{margin:0 0 14px}.kicker{font-size:12px;color:var(--gold);font-weight:800;letter-spacing:.12em}.lead{font-size:18px;color:var(--ink);font-weight:800}.summary{max-width:780px;color:var(--muted)}.section{padding:30px 0}
.leaf-index{display:flex;gap:12px;flex-wrap:wrap;margin:16px 0 20px}.leaf-index a{display:flex;align-items:center;gap:7px;padding:8px 12px;background:var(--paper);border:1px solid var(--border);border-radius:18px}.leaf-index a:before{content:"";width:18px;height:12px;border:1px solid var(--gold);border-radius:10px 8px 10px 2px}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn{min-height:42px;padding:0 18px;border-radius:18px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;border:1px solid transparent}.btn-primary{background:linear-gradient(135deg,#18140A 0%,#C9A03A 100%);color:var(--paper)}.btn-secondary{background:var(--paper);border-color:var(--gold)}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--honey);outline-offset:2px}
.card,.panel{background:var(--paper);border:1px solid var(--border);border-radius:18px;padding:20px;box-shadow:var(--shadow)}.media{background:var(--paper);border:1px solid var(--border);border-radius:18px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media img{width:100%;height:100%;object-fit:contain}.m-card{height:180px}.m-wide{height:168px}.m-app{height:310px}.m-icon{width:64px;height:64px}.m-banner{height:200px}.vertical{display:grid;grid-template-columns:minmax(180px,260px) 1fr;gap:22px;align-items:stretch}.vertical .media{height:200px}.double{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.round{display:grid;grid-template-columns:1.15fr .85fr;grid-template-rows:auto auto;gap:16px}.round .main{grid-row:1/3}.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.timeline article{background:var(--ink);color:var(--paper);border-radius:18px;padding:18px}.timeline h3,.timeline h2{color:var(--honey)}.status-list{display:grid;gap:10px}.status{display:grid;grid-template-columns:120px 1fr;gap:14px;background:var(--paper);border-left:4px solid var(--gold);border-radius:16px;padding:14px 16px}.status b{color:var(--gold)}.method{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.method section,.memo,.topic,.qa,.contact-card{background:var(--paper);border:1px solid var(--border);border-radius:18px;padding:20px}.memo-list,.qa-list,.topic-list{display:grid;gap:14px}.topic{display:grid;grid-template-columns:90px 1fr;gap:18px}.topic .num{font-size:30px;color:var(--honey);font-weight:800}.center{max-width:780px;margin:auto}.terms section{padding:18px 0;border-bottom:1px solid var(--border)}.app-stack{display:grid;gap:16px}.app-media{display:grid;grid-template-columns:1fr 72px;gap:12px}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.footer{background:var(--ink);color:var(--bg);border-top:1px solid var(--honey);padding:34px 0 calc(70px + env(safe-area-inset-bottom))}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}.footer-brand img{height:24px}.footer-brand div{display:flex;gap:8px;align-items:baseline}.footer-brand span{font-size:12px;color:var(--honey);letter-spacing:.12em}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-grid h2{font-size:14px;color:var(--honey)}.footer-grid a{display:block;font-size:13px;padding:4px 0}.footer-note,.copyright{font-size:13px;color:#DED1B3}.footer-note{margin-top:24px;padding-top:18px;border-top:1px solid rgba(201,160,58,.28)}
.mask{position:fixed;inset:0;z-index:90;background:rgba(24,20,10,.46);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.mask.open{opacity:1;visibility:visible;pointer-events:auto}.bag{position:fixed;z-index:100;right:16px;top:76px;width:300px;max-height:350px;background:var(--paper);border:1px solid var(--strong);border-radius:18px;box-shadow:var(--shadow);transform:translateY(-20px);opacity:0;visibility:hidden;pointer-events:none;transition:.22s}.bag.open{transform:none;opacity:1;visibility:visible;pointer-events:auto}.bag-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--border)}.bag-brand{display:flex;align-items:center;gap:8px}.bag-brand img{height:24px}.bag-head button,.search-head button{min-height:44px;border:0;background:transparent;color:var(--gold)}.bag-scroll{max-height:285px;overflow:auto;padding:10px 14px}.bag-scroll section{margin-bottom:12px}.bag-scroll h2{font-size:13px;color:var(--gold);margin-bottom:5px}.bag-scroll a{display:block;padding:7px 0;border-bottom:1px solid var(--border)}.bag-scroll b{display:block;font-size:13px}.bag-scroll span{display:block;font-size:12px;color:var(--muted)}
.search{position:fixed;z-index:101;top:76px;left:50%;width:min(560px,calc(100% - 32px));transform:translate(-50%,-14px);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search.open{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}.search-card{background:var(--paper);border:1px solid var(--strong);border-radius:18px;box-shadow:var(--shadow);padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between}.search-head h2{margin:0}.search input{width:100%;height:44px;border:1px solid var(--strong);border-radius:14px;background:#fffdf5;padding:0 12px}.search-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.search-links a{padding:8px 12px;border:1px solid var(--gold);border-radius:14px;font-size:13px}.mobile-nav{display:none}
@media(max-width:720px){.leaf-nav{display:none}.site-main{padding-top:74px;padding-bottom:68px}.vertical,.double,.round,.timeline,.method,.contact-grid,.footer-grid{grid-template-columns:1fr}.round{grid-template-rows:auto}.round .main{grid-row:auto}.topic{grid-template-columns:1fr}.status{grid-template-columns:100px 1fr}.app-media{grid-template-columns:1fr}.m-icon{width:64px}.bag{right:6%;width:88%}.search{top:0;left:0;width:100%;height:100%;transform:none;background:var(--ink);padding:80px 16px 16px}.search.open{transform:none}.search-card{background:var(--ink);color:var(--honey);box-shadow:none}.search-card h2,.search-head button{color:var(--honey)}.search input{background:var(--paper)}.search-links a{color:var(--paper);border-color:var(--honey)}.mobile-nav{position:fixed;z-index:70;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(4,1fr);background:var(--paper);border-top:1px solid var(--strong)}.mobile-nav a{min-height:48px;display:flex;align-items:center;justify-content:center;font-size:13px}.mobile-nav a.is-current{background:var(--honey);color:var(--ink);font-weight:800}}